I took an old 1hp electric farm motor, put it on my homemade wheel, then to control speeds I attached a control for Ac motors I purchased off of Ebay for around $20.00. Next I added a foot pedal from my foredom tool. It works great and it is what I am using as a production potter. I also use a mini green house used for starting seedlings, that has plastic walls, as a wet room. It holds about 1 dozen bats at a time.